$ git clone -n https://src.fedoraproject.org/rpms/ergo.git /var/lib/mock/f40-build-790897-136885/root/chroot_tmpdir/scmroot/ergo
Cloning into '/var/lib/mock/f40-build-790897-136885/root/chroot_tmpdir/scmroot/ergo'...
$ git fetch origin cfcc2092af2f2d91bc40c061abd1c21c39d139e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ergo
 * [new ref]         cfcc2092af2f2d91bc40c061abd1c21c39d139e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfcc209 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild